COMEDK · Physics · 20. Magnetic Properties of Matter
The percentage increase in magnetic field \(\mathrm{B}\) when the space within a current carrying solenoid is filled with a medium of susceptibility 0.004 is
- A 4
- B 40
- C 0.04
- D 0.4
Answer & Solution
Correct Answer
(D) 0.4
Step-by-step Solution
Detailed explanation
The magnetic field inside a current-carrying solenoid in vacuum is given by \(B_0 = \mu_0 n I\). When the space is filled with a medium of magnetic susceptibility \(\chi_m\), the magnetic field becomes \(B = \mu_r B_0\), where \(\mu_r\) is the relative permeability of the…
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